The Late Show host assembled some of the remaining Avengers stars, like Chris Evans, Brie Larson, Chris Hemsworth, and Scarlett Johansson, and gave each of his staff members a chance to toss out a question.

To the guy who asked Hemsworth to spoil the ending, the Thor actor said he’d have to “straight up murder” him if he told. To his surprise, the response was, “Okay, I accept.” Worth it.